Wiring funds to a company is not possible from India. There are restrictions that applies for outward remittances that a person can do. You are limited to certain purposes. Only if you mention Okcoin or bitstamp as educational institution, you can complete the transfer. Doing so may lead to serious charges if found. You can't do continuous transfers to abroad because that will bring RBI and income tax dept's eye on your account. Better find some trust worthy person who sells btc or use local exchanges.